Superior properties of homogeneously aligned twisted nematic liquid crystals on nanoscale molybdenum trioxide surfaces

Hong Gyu Park; Dai Hyun Kim; Gun Young Lee; Young Hwan Kim; Dae Shik Seo

doi:10.1166/jnn.2014.8780

Superior properties of homogeneously aligned twisted nematic liquid crystals on nanoscale molybdenum trioxide surfaces

Hong Gyu Park, Dai Hyun Kim, Gun Young Lee, Young Hwan Kim, Dae Shik Seo

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Homogeneously aligned twisted nematic liquid crystals (TN-LCs) were produced on molybdenum trioxide (MoO₃) thin films via ion beam (IB) irradiation. Control of the pretilt angle was achieved by varying the IB incident angle. X-ray photoelectron spectroscopy (XPS) analysis revealed that the intensity of the Mo O and O Mo bonds at various IB incident angles exhibited the tendency that was opposite to that of the pretilt angle and the lowest intensity was produced at 45°. Superior electro-optical (EO) characteristics were also observed. Furthermore, a TN-LC cell fabricated with the MoO ₃ thin films exhibited high thermal stability. Such stability could be maintained at temperatures greater than 150 °C.

Original language	English
Pages (from-to)	5917-5920
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	14
Issue number	8
DOIs	https://doi.org/10.1166/jnn.2014.8780
Publication status	Published - 2014 Aug

All Science Journal Classification (ASJC) codes

Bioengineering
Chemistry(all)
Biomedical Engineering
Materials Science(all)
Condensed Matter Physics

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title = "Superior properties of homogeneously aligned twisted nematic liquid crystals on nanoscale molybdenum trioxide surfaces",

abstract = "Homogeneously aligned twisted nematic liquid crystals (TN-LCs) were produced on molybdenum trioxide (MoO3) thin films via ion beam (IB) irradiation. Control of the pretilt angle was achieved by varying the IB incident angle. X-ray photoelectron spectroscopy (XPS) analysis revealed that the intensity of the Mo O and O Mo bonds at various IB incident angles exhibited the tendency that was opposite to that of the pretilt angle and the lowest intensity was produced at 45°. Superior electro-optical (EO) characteristics were also observed. Furthermore, a TN-LC cell fabricated with the MoO 3 thin films exhibited high thermal stability. Such stability could be maintained at temperatures greater than 150 °C.",

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AU - Park, Hong Gyu

AU - Kim, Dai Hyun

AU - Lee, Gun Young

AU - Kim, Young Hwan

AU - Seo, Dae Shik

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AB - Homogeneously aligned twisted nematic liquid crystals (TN-LCs) were produced on molybdenum trioxide (MoO3) thin films via ion beam (IB) irradiation. Control of the pretilt angle was achieved by varying the IB incident angle. X-ray photoelectron spectroscopy (XPS) analysis revealed that the intensity of the Mo O and O Mo bonds at various IB incident angles exhibited the tendency that was opposite to that of the pretilt angle and the lowest intensity was produced at 45°. Superior electro-optical (EO) characteristics were also observed. Furthermore, a TN-LC cell fabricated with the MoO 3 thin films exhibited high thermal stability. Such stability could be maintained at temperatures greater than 150 °C.

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Superior properties of homogeneously aligned twisted nematic liquid crystals on nanoscale molybdenum trioxide surfaces

Abstract

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